John Perritano Books

The comet of doom

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Mad scientist Dr. Alowishus Cobalt has used a tractor beam to alter the course of a comet and aim it at Earth, and it is up to the Kid Squad--Pi, Athena, Gadget, Tank, and their trusty cat D-Day to...

The Egyptian prophecy

By John Perritano

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Earthquakes and volcanoes are shaking the Earth, while at Copernicus Middle School the Kid Squad--Pi, Athena, Gadget, Tank, and their cat, D-Day--are caught up in an ancient Egyptian prophecy, and...

The madness of Captain Cyclops

By John Perritano

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When the testing of a nuclear-powered invisibility device goes awry, Captain Rudolph Von Dorn is transformed into the evil Captain Cyclops, blowing up ships and islands at will--and the Kid Squad,...

The Snickerblooms and the Age Bug

By John Perritano

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When Athena's parents suddenly disappear, she calls on her friends on the Kid Squad to help figure out what happened--and uncovers the surprising connection between her parents, a biological weapon...

Battle of the Bots

By Mike Laughead, John Perritano

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Comet of Doom

By Mike Laughead, John Perritano

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Egyptian Prophecy

By Mike Laughead, John Perritano

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Madness of Captain Cyclops

By Mike Laughead, John Perritano

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Snickerblooms and the Age Bug

By Mike Laughead, John Perritano

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Monsters of the Deep

By Perritano John

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.